Didanosine may cause serious or life-threatening pancreatitis (swelling of the pancreas). Tell your doctor if you drink or have ever drunk large amounts of alcoholic beverages and if you have or have ever had pancreatitis, or pancreas or kidney disease.If you experience any of the following symptoms, call your doctor immediately: stomach pain or swelling, nausea, vomiting, or fever.
Didanosine may cause life-threatening damage to the liver and a potentially life-threatening condition called lactic acidosis (buildup of lactic acid in the blood). The risk that you will develop lactic acidosis may be higher if you are a woman, if you are overweight, or if you have been treated with medications for HIV for a long time. Tell your doctor if you have or have ever had liver disease. Tell your doctor if you are taking stavudine (Zerit). Your doctor will probably tell you not to take didanosine if you are taking this medication. If you experience any of the following symptoms, call your doctor immediately or get emergency medical treatment: shortness of breath; fast breathing; changes in heartbeat; nausea; vomiting; loss of appetite; weight loss; diarrhea; pain in the upper right part of your stomach; unusual bleeding or bruising; yellowing of the skin or eyes; dark-colored urine; light-colored bowel movements; extreme tiredness; cold or blue-colored hands and feet; or muscle pain.
Keep all appointments with your doctor and the laboratory. Your doctor will order certain lab tests to check your body's response to didanosine.
Talk to your doctor about the risks of taking didanosine.
Your doctor or pharmacist will give you the manufacturer's patient information sheet (Medication Guide) when you begin treatment with didanosine and each time you refill your prescription. Read the information carefully and ask your doctor or pharmacist if you have any questions. You can also visit the Food and Drug Administration (FDA) website ( Web Site) or the manufacturer's website to obtain the Medication Guide.
Didanosine is used along with other medications to treat human immunodeficiency virus (HIV) infection. Didanosine is in a class of medications called nucleoside reverse transcriptase inhibitors (NRTIs). It works by decreasing the amount of HIV in the blood. Although didanosine does not cure HIV, it may decrease your chance of developing acquired immunodeficiency syndrome (AIDS) and HIV-related illnesses such as serious infections or cancer. Taking these medications along with practicing safer sex and making other lifestyle changes may decrease the risk of transmitting (spreading) the HIV virus to other people.
Didanosine comes as extended-release (long-acting) capsules and as an oral solution (liquid) to take by mouth. The oral solution is usually taken once or twice a day 30 minutes before or 2 hours after eating. The extended-release capsules are usually taken once a day on an empty stomach. Take didanosine around the same time(s) every day. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take didanosine exactly as directed. Do not take more or less of it, or take it more often than prescribed by your doctor.
If you are using the extended-release capsules, swallow them whole; do not split, chew, crush, break, or dissolve them. Tell your doctor if you are unable to swallow the extended-release capsules whole.
If you are taking the oral solution, you should shake it well before each use to mix the medication evenly. Use a dose-measuring spoon or cup to measure the correct amount of liquid for each dose, not a regular household spoon.
Didanosine controls HIV infection but does not cure it. Continue to take didanosine even if you feel well. Do not stop taking didanosine without talking to your doctor. If you miss doses or stop taking didanosine, your condition may become more difficult to treat.
Didanosine is also sometimes used with other medications to help prevent infection in healthcare workers or other people who were accidentally exposed to HIV. Talk to your doctor about the possible risks of using this medication for your condition.
This medication may be prescribed for other uses; ask your doctor or pharmacist for more information.
Before taking didanosine,
Unless your doctor tells you otherwise, continue your normal diet.
Take the missed dose as soon as you remember it. However, if it is almost time for the next dose, skip the missed dose and continue your regular dosing schedule. Do not take a double dose to make up for a missed one.
Didanosine may cause side effects. Tell your doctor if this symptom is severe or does not go away:
Some side effects can be serious. If you experience any of the following symptoms or those mentioned in the IMPORTANT WARNING section, call your doctor immediately:
Didanosine may cause other side effects. Call your doctor if you have any unusual problems while taking this medication.
If you experience a serious side effect, you or your doctor may send a report to the Food and Drug Administration's (FDA) MedWatch Adverse Event Reporting program online ( Web Site ) or by phone (1-800-332-1088).
Keep didanosine capsules in the container they came in, tightly closed, and out of reach of children. Store them at room temperature and away from excess heat and moisture (not in the bathroom). Keep didanosine oral solution in the refrigerator, closed tightly, and dispose of any unused medication after 30 days.
It is important to keep all medication out of sight and reach of children as many containers (such as weekly pill minders and those for eye drops, creams, patches, and inhalers) are not child-resistant and young children can open them easily. To protect young children from poisoning, always lock safety caps and immediately place the medication in a safe location – one that is up and away and out of their sight and reach. Web Site
Unneeded medications should be disposed of in special ways to ensure that pets, children, and other people cannot consume them. However, you should not flush this medication down the toilet. Instead, the best way to dispose of your medication is through a medicine take-back program. Talk to your pharmacist or contact your local garbage/recycling department to learn about take-back programs in your community. See the FDA's Safe Disposal of Medicines website ( Web Site) for more information if you do not have access to a take-back program.
In case of overdose, call the poison control helpline at 1-800-222-1222. Information is also available online at Web Site. If the victim has collapsed, had a seizure, has trouble breathing, or can't be awakened, immediately call emergency services at 911.
Symptoms of overdose may include the following:
Do not let anyone else take your medication. Ask your pharmacist any questions you have about refilling your prescription.
Keep a supply of didanosine on hand. Do not wait until you run out of medication to refill your prescription.
It is important for you to keep a written list of all of the prescription and nonprescription (over-the-counter) medicines you are taking, as well as any products such as vitamins, minerals, or other dietary supplements. You should bring this list with you each time you visit a doctor or if you are admitted to a hospital. It is also important information to carry with you in case of emergencies.
AHFS® Consumer Medication Information. © Copyright, The American Society of Health-System Pharmacists, Inc., 7272 Wisconsin Avenue, Bethesda, Maryland. All Rights Reserved. Duplication for commercial use must be authorized by ASHP.
Selected Revisions: February 15, 2019.